Week 1 Flashcards

1
Q

what is the goal of cerebrovascular procedures?

A

to prevent stroke and evaluate vasospasm of the brain after subarachnoid hemorrhage

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2
Q

Atherosclerosis is _______________

A

the primary disease of the carotid arteries and a primary cause of stroke

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3
Q

What is a stroke?

A

A stoke occurs when the blood supply to part of your brain is interrupted or severely reduced, depriving brain tissue of oxygen and nutrients; within minutes, brain cells begin to die

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4
Q

Stroke symptoms include:

A
Trouble speaking and understanding
Paralysis or numbness of the face, arm or leg
Trouble seeing in one or both eyes
Headache
Trouble walking
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5
Q

What does the acronym FAST stand for?

A

Face (smile, droop?)
Arms (raise arms, downward drift?)
Speech (slurred or strange speech?)
Time (call 911 right away)

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6
Q

Ischemia =

A

Blocked artery

 - thrombus formed at carotid site
 - embolus breaking from carotid plaque
 - embolus from heart
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7
Q

Hemorrhage =

A

bleed in the brain caused by an artery bursting

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8
Q

85% of strokes are __________

A

ischemic

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9
Q

Ischemic strokes can be either _________ or ___________.

A

Thrombotic or Embolic

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10
Q

What is a common condition that causes an embolic stroke from the heart?

A

AFIB

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11
Q

When a blood vessel in the brain bursts and spills into the surrounding brain tissue, it is called a ____________

A

Intracerebral hemorrhage

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12
Q

When an artery near the surface of your brain bursts and spills into the space between the surface of your brain and your skull, it is called a ______________

A

subarachnoid hemorrhage

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13
Q

What is the biggest risk factor for stroke?

A

HTN

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14
Q

3/4 of all stokes occur is people who are ___________

A

over the age of 65

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15
Q

Define a TIA

A

Transient Ischemic Attack

 - brief period of stoke symptoms (<24 hrs)
 - blockage is temporary
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16
Q

What is the best medical treatment for stroke?

A

TPA (Tissue plasminogen activator)

17
Q

What is the term for a common Aortic arch branch variant?

18
Q

What is the first branch of the ECA?

A

The Superior Thyroid

19
Q

What is the Flow divider?

A

The point of tissue where the ICA and ECA split

20
Q

Define where the different sections of the ICA are located

A

Proximal - 0-1.5 cm from FD
Mid - 1.5 - 3.0 cm from FD
Distal - >3.0 cm from FD

21
Q

What are some important collaterals if the ICA becomes occluded?

A

Supraorbital, Frontal, Nasal

22
Q

Name the branches of the ECA starting proximally.

A
Superior Thyroid
Lingual
Facial
Occipital
Maxillary
Superficial temporal
23
Q

What is a common collateral if the CCA becomes occluded?

A

Retrograde ECA flow feeds the ICA

24
Q

What is a common collateral if the ICA is occluded?

A
  • ECA branches feed distal ophthalmic branches which feeds the ICA
  • Flow through circle of willis
  • vertebral to basilar to circle of willis
25
Q

What is a common collateral if the proximal SCA is occluded?

A
  • Ipsilateral Vertebral flow reverses to feed arm (subclavian steal)
  • Contralateral vertebral into basilar and ipsilateral vertebral to arm
26
Q

What is a common collateral if the BCA is occluded?

A

Vertebral flow reversal into proximal SCA to feed CCA

27
Q

What plane is the best to visualize the ICA?

A

postero-lateral

28
Q

How do you distinguish the Carotid Bulb from the proximal ICA?

A

Artery walls are not parallel in bulb

29
Q

The Vertebral artery is ______ to the vein